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MERSEN FUSE 12,5 URD 70 TT F 0050 12,5URD70TTF0050
High-speed aR characteristic fuse with 1250VAC IEC and 1300VAC UL ratings, 50A current capacity, flush striker indicator, and metric threaded flush ends for industrial semiconductor protection.
£57.70
Why Choose the Mersen C301095 High-Speed Semiconductor Fuse?
The Mersen C301095 is an industrial high-speed semiconductor fuse intended to protect sensitive power electronic components against damaging short-circuit currents. It is suitable for equipment incorporating devices such as IGBTs, thyristors, SCRs, rectifier diodes and semiconductor power modules.
High-speed fuses operate significantly faster than conventional general-purpose fuses, limiting the electrical and thermal energy transferred to protected components during a fault. This rapid current-limiting action can help reduce secondary damage, improve equipment reliability and minimise costly downtime in industrial power-conversion and motor-control systems.
The Mersen C301095 fuse is suitable for maintenance, repair and replacement applications where its electrical ratings, utilisation category, body dimensions and terminal arrangement match the original component. The precise current rating, voltage rating, breaking capacity and mounting configuration should be confirmed from the fuse markings or official Mersen technical documentation before installation.
Key Advantages
- High-speed semiconductor protection for industrial power electronics.
- Rapid fault interruption helps minimise damage to sensitive components.
- Low let-through energy reduces thermal and electrical stress.
- Current-limiting performance supports dependable short-circuit protection.
- Suitable for power-conversion, motor-control and automation equipment.
- Manufactured by Mersen, a recognised electrical-protection specialist.
Key Features
- Mersen C301095 industrial fuse.
- High-speed operating characteristic for semiconductor applications.
- Designed to limit damaging short-circuit current and fault energy.
- Suitable for protecting IGBTs, SCRs, thyristors and rectifier diodes.
- Robust construction for demanding industrial environments.
- Compatible with an appropriately rated fuse holder or busbar assembly.
- Suitable for original-equipment maintenance and replacement applications.
- Engineered for reliable protection of industrial power electronic systems.
Reliable Protection for Industrial Power Electronics
Power semiconductor devices can be permanently damaged by fault currents before conventional circuit-protection products have time to operate. High-speed fuses such as the Mersen C301095 are designed to interrupt these currents rapidly, reducing the amount of damaging energy that reaches sensitive electronic components.
Correct fuse selection is essential for safe and reliable operation. Any replacement fuse should match the current rating, voltage rating, utilisation category, breaking capacity, dimensions and terminal arrangement specified by the equipment manufacturer.
Typical Applications
- Variable frequency drives and industrial motor controllers.
- Power converters and inverter systems.
- Rectifier and thyristor assemblies.
- Uninterruptible power supply equipment.
- Industrial automation and control systems.
- Renewable-energy power-conversion equipment.
Technical Specifications
Tick the specs you need, then view products that match.
| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 1250 V | |
| Item number | C301095 | |
| Catalogue No | PC70UD13C50TF | |
| Description | Square Body High-Speed Fuse Protistor® Size 70 aR 1250VAC IEC 1300VAC UL 50A With Striker Flush ends metric threads | |
| EAN/UPC Code | 3605340336764 | |
| Rated voltage AC UL | 1300 V | |
| Rated voltage AC IEC | 1250 V | |
| Ampere Rating | 50 A | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 70 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 980 A²s | |
| Melting I2t | 120 A²s | |
| AC Max I.R./Breaking Capacity | I1: 126 kA | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Brass | |
| Connection/Terminal Type | Flush ends | |
| Product Width | 39.8 mm | |
| Product Length | 74 mm | |
| Product Height | 49.5 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 1.017 kg | |
| Sell Pack Width | 85 mm | |
| Sell Pack Length | 133 mm | |
| Sell Pack Height | 55 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.339 kg | |
| Power Dissipation at Rated Current Value | 16 W | |
| HS Code | 85351000 |
Frequently Asked Questions
What is the Mersen C301095 used for?
The Mersen C301095 is used to provide high-speed short-circuit protection for semiconductor devices installed in industrial power electronic equipment.
Which components can the C301095 protect?
It is intended for applications involving sensitive components such as IGBTs, thyristors, SCRs, rectifier diodes and semiconductor power modules.
Can the C301095 replace a general-purpose fuse?
It should only be installed where its electrical ratings, operating characteristic, dimensions and terminal configuration match the equipment requirements. A general-purpose fuse may not operate quickly enough to protect sensitive semiconductor components.
How can I confirm the current and voltage ratings?
Check the markings printed on the original fuse and compare them with the equipment documentation or an official Mersen technical datasheet before ordering a replacement.
Where is this fuse typically installed?
It is typically installed within industrial drives, converters, rectifiers, power supplies, control cabinets and other equipment containing power semiconductor devices.
Trusted Industrial Electrical Protection
Mersen high-speed fuses are specified by equipment manufacturers, panel builders and maintenance engineers to protect critical semiconductor components in demanding industrial power electronic systems.
